Fig. 3. Bland-Altman plots for each method versus bladder temperature, and the two sides of infrared aural canal method. On the x axis is the average of the measurement from method and bladder. On the y axis is the difference of the measurement from method and bladder. Dashed line shows mean bias, and solid lines show 95% limits of agreement. Deep chest = deep temperature with a 7-cm probe on the chest; Deep FH = deep temperature with a 4-cm probe on the forehead; Elec Axilla = axilla with electronic thermometer; Elec Oral = posterior sublingual pocket with electronic thermometer; FH LCD = forehead liquid-crystal display; IRAC = infrared aural canal; TA = temporal artery with an electronic scanning thermometer; TC FH = forehead skin thermocouple; TC FH2 = TC FH plus 2°C.